High Heat Baseball 2003 is a sports simulation game for Sony PS2 PlayStation 2. Developed by 3DO, the game offers an immersive baseball experience with its in-depth mechanics and realistic representation of the sport's rules. It features all 30 Major League Baseball teams and over a thousand real-life players. The game allows players to participate in various game modes such as single games, full seasons, playoffs, and home run derby. Additionally, it offers management functions where players can trade, sign, and release players. The game received praise for its accurate ball physics and AI, providing a challenging and engaging experience for baseball enthusiasts.